My son received the VR204 from his godfather as a belated new years gift. After assembly we noticed one of the servo’s wasn’t acting correctly, we did the centering different times no improvements. Result off-course that the bot would fall once in the random routine of the example program…

Looking closely to the suspected servo, we heard it didn’t make a similar sound as the others when it turns, so couldn’t resist to open it. And we found the culprit one of the internal gear wheels was simple broken!